#include <curses.h>
#include <stdlib.h>
#include "eat.h"

void stupid_test(void)
{
	if (initscr() == NULL) {
		perror("initscr");
		return;
	}

	printw("This is a a curses window\n");
	refresh();
	sleep(3);

	printw("Going bye-bye now\n");
	refresh();
	sleep(3);
	endwin();
}

/* Allocate and initialize a new window */
struct win_t* create_win(struct screen_t* s, int l, int t, int r, int b,
		int sb_h, win_type_t type)
{
	struct win_t* w = malloc(sizeof(struct win_t));		/* Allocate */
	if (w == NULL) return NULL;				/* Failure */
	if (init_win(w, s, l, t, r, b, sb_h, type) == NULL) {	/* Initialize */
		destroy_win(w);					/* Deallocate */
		return NULL;					/* Failure */
	}
	return w;						/* Success */
}

/* Initialize an already-allocated window */
struct win_t* init_win(struct win_t* w, struct screen_t* s, int l, int t, int r,
		int b, int sb_h, win_type_t type)
{
	int max_r, max_b;

	if (w == NULL || s == NULL) return NULL;		/* Failure */

	/* Clip coordinates */
	getmaxyx(s->c_win, max_r, max_b);
	if (l < 0) l = 0; if (t < 0) t = 0;
	if (r > max_r) r = max_r; if (b > max_b) b = max_b;
	
	/* Store some basic information */
	w->l = l; w->t = t; w->r = r; w->b = b;
	w->w = r - l + 1; w->h = b - t + 1;
	w->type = type;

	/* Create a curses window */
	w->c_win = subwin(s->c_win, w->h, w->w, w->t, w->l);
	if (w->c_win == NULL) return NULL;			/* Failure */

	return w;						/* Success */
}

/* Destroy a window */
int destroy_win(struct win_t* w)
{
	if (w == NULL) return 0;				/* Failure */
	if (w->c_win != NULL && delwin(w->c_win) == ERR) return 0;/* Failure */
	/* Also, deallocate type-specific stuff */
	return 1;						/* Success */
}